<template>
  <div class="header">
    <div class="nav-topbar">
      <div class="container">
        <div class="topbar-menu">
          <a href="javascript:;">小米商城</a>
          <a href="javascript:;">MUI</a>
          <a href="javascript:;">云服务</a>
          <a href="javascript:;">协议规则</a>
        </div>
        <div class="topbar-user">
          <a href="javascript:;" v-if="username">{{ username }}</a>
          <a href="javascript:;" v-if="!username" @click="login">登录</a>
          <a href="javascript:;" v-if="username" @click="logout">退出</a>
          <a href="/#/order/list" v-if="username">我的订单</a>
          <a href="javascript:;" @click="goCart" class="my-cart"
            ><span class="icon-cart"></span>购物车{{ cartCount }}</a
          >
        </div>
      </div>
    </div>
    <div class="nav-header">
      <div class="container">
        <div class="header-logo">
          <a href="/#/index"></a>
        </div>
        <div class="header-menu">
          <div class="item-menu">
            <span>小米手机</span>
            <div class="children">
              <ul>
                <li
                  v-for="(item, index) in phoneList"
                  :key="index"
                  class="product"
                >
                  <a :href="'/#/product/' + item.id" target="_blank">
                    <div class="pro-img">
                      <img v-lazy="item.mainImage" />
                    </div>
                    <div class="pro-name">{{ item.name }}</div>
                    <div class="pro-price">{{ item.price | currency }}</div>
                  </a>
                </li>
              </ul>
            </div>
          </div>
          <div class="item-menu">
            <span>RedMi红米</span>
          </div>
          <div class="item-menu">
            <span>电视</span>
            <div class="children">
              <ul>
                <li v-for="index in 6" :key="index" class="product">
                  <a href="" target="_blank">
                    <div class="pro-img">
                      <img src="/imgs/nav-img/nav-3-1.jpg" />
                    </div>
                    <div class="pro-name">电视1</div>
                    <div class="pro-price">10000元</div>
                  </a>
                </li>
              </ul>
            </div>
          </div>
        </div>
        <div class="header-search">
          <div class="wrapper">
            <input type="text" name="keyword" />
            <a href="javascript:;"></a>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>
<script>
import { mapState } from "vuex";
export default {
  name: "nav-header",
  data() {
    return {
      phoneList: [],
    };
  },
  computed: {
    //   username(){
    //  return  this.$store.state.username

    //   },
    //    cartCount(){
    //       return this.$store.state.cartCount;
    //     },
    ...mapState(["username", "cartCount"]),
  },
  filters: {
    currency(val) {
      if (!val) return "0.00";
      return "￥" + val.toFixed(2) + "元"; // 四舍五入2位
    },
  },
  methods: {
    getProductList() {
      this.axios
        .get("/products", {
          params: {
            categoryId: "100012",
            pageSize: 6,
          },
        })
        .then((res) => {
          this.phoneList = res.list;
        });
    },
    login() {
      this.$router.push("/login");
    },
    goCart() {
      this.$router.push("/cart");
    },
    logout() {
      this.axios.post("/user/logout").then(() => {
        this.$message.success("退出成功");
        this.$cookie.set("userId", { expires: "-1" }); //登出让唯一凭证cookie立刻过期
        this.$store.dispatch("savename", ""); //用户名清空
        this.$store.dispatch("getCount", "0"); //购物车数量0
      });
    },
    getCartCount() {
      this.axios.get("/carts/products/sum").then((res = 0) => {
        // to-do 保存到vuex里面
        this.$store.dispatch("getCount", res);
      });
    },
  },
  mounted() {
    this.getProductList();
    let params = this.$route.params;

    if (params && params.from == "login") {
      this.getCartCount();
    }
  },
};
</script>
<style lang="scss" scoped>
@import "../assets/scss/base.scss";
@import "../assets/scss/mixin.scss";
@import "../assets/scss/config.scss";
.header {
  .nav-topbar {
    height: 40px;
    line-height: 40px;
    background-color: #333333;
    color: #b0b0b0;
    .container {
      @include flex();
      a {
        @include display;
        color: #b0b0b0;
        margin-right: 17px;
      }
      .my-cart {
        width: 100px;
        background-color: #ff6600;
        text-align: center;
        color: #fff;
        margin-right: 0;
        .icon-cart {
          margin-right: 4px;
          @include bgImg(16px, 12px, "/imgs/icon-cart-checked.png");
        }
      }
    }
  }
  .nav-header {
    .container {
      position: relative;
      height: 112px;
      @include flex();

      .header-menu {
        @include display;
        width: 643px;
        padding-left: 209px;
        .item-menu {
          @include display;
          color: #333333;
          font-weight: bold;
          font-size: 16px;
          line-height: 112px;
          margin-right: 20px;
          span {
            cursor: pointer;
          }
          &:hover {
            color: $colorA;
            .children {
              height: 220px;
              opacity: 1;
            }
          }
          .children {
            z-index: 10;
            height: 0px;
            opacity: 0;
            overflow: hidden;
            position: absolute;
            transition: all 0.5s;
            background-color: #fff;
            top: 112px;
            left: 0;
            width: 1226px;
            border-top: 1px solid #e5e5e5;
            box-shadow: 0px 7px 6px 0px rgba(0, 0, 0, 0.11);
            .product {
              background-color: #fff;
              float: left;
              width: 16.6%;
              height: 220px;
              font-size: 12px;
              line-height: 12px;
              text-align: center;
              position: relative;
              .pro-img {
                height: 137px;
              }
              .pro-name {
                font-weight: 700;
                margin-top: 19px;
                margin-bottom: 8px;
                color: $colorB;
              }
              .pro-price {
                color: $colorA;
              }
              a {
                @include display;
              }
              img {
                height: 111px;
                width: auto;
                margin-top: 26px;
              }
              &:before {
                content: "";
                position: absolute;
                top: 28px;
                right: 0;
                border-left: 1px solid $colorF;
                height: 100px;
                width: 1px;
              }
              &:last-child:before {
                display: none;
              }
            }
          }
        }
      }
    }
  }
  .header-search {
    width: 319px;
    .wrapper {
      height: 50px;
      border: 1px solid #e0e0e0;
      display: flex;
      align-items: center;
      input {
        border: none;
        border-right: 1px solid #e0e0e0;
        box-sizing: border-box;
        width: 264px;
        height: 50px;
        padding-left: 10px;
      }
      a {
        @include bgImg(18px, 18px, "/imgs/icon-search.png");
        margin-left: 18px;
      }
    }
  }
}
</style>
